package com.zkk.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.zkk.reggie.common.R;
import com.zkk.reggie.entity.User;
import com.zkk.reggie.service.UserService;
import com.zkk.reggie.utils.SMSUtils;
import com.zkk.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){

        //获取手机号
        String phone = user.getPhone();

        if (!StringUtils.isEmpty(phone)){

            //生成随机四位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);

            //调用aliyun提供的短信服务API完成发送短信
            SMSUtils.sendMessage("zky滴message","SMS_269060278",phone,code);

            //需将生成的验证码保存到Session
//            session.setAttribute(phone,code);

            //将生成的验证码放入Redis中，并设置有效期为5分钟
            stringRedisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }

       return R.error("手机验证码发送失败");
    }


    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map,HttpSession session){

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
//        Object codeInSession = session.getAttribute(phone);

        //从Redis中获取缓存的验证码
        String codeInRedis = stringRedisTemplate.opsForValue().get(phone);

        //进行验证码的对比（页面表单提交的验证码 和 session域中的验证码 ）
        //如果匹配成功 说明登录成功
        if (codeInRedis != null && codeInRedis.equals(code)){

            //判断当前手机号是否为新用户,是顺便进行注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if (user == null){
                //注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //如果登录成功，删除Redis中缓存的验证码
            stringRedisTemplate.delete(phone);

            return R.success(user);
        }


        return R.error("登录失败");
    }
}
